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FIG 2. Axial fluid-attenuated inversion recovery (FLAIR) image (TR/TE, 9500/110) through the midbrain (A) demonstrates a subtle area of increased signal intensity (arrows) along the medial margin of the cerebral peduncle on the left side. No enhancement is seen on the axial gadolinium-enhanced T1-weighted image (600/17) (B) in this region. The coronal gadolinium-enhanced T1-weighted images (600/14) through the cisternal course of cranial nerve III (C) demonstrate subtle enhancement of the cranial nerve III on the left side (arrows in C). Notice the normal appearance of cranial nerve III on the right (arrowheads in C).
